| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.90 |
| Score | 0% | 58% |
You're replacing the hubcaps on a car. Which of the following are you most likely to use?
rubber mallet |
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ball-peen hammer |
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claw hammer |
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wooden mallet |
A mallet is a hammer with a relatively large head, often made of rubber or wood. Both the size and material of the mallet head help prevent damage when striking more delicate surfaces.
The __________ is an initial shallow saw cut made as a guide to prevent the saw from slipping sideways on subsequent more powerful cuts.
guide |
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groove |
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kerf |
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channel |
When you start sawing by creating a kerf it will help prevent the saw from slipping sideways when you begin the power strokes that do most of the cutting.
Which of the following statements about an 8-point saw is not true?
an 8-point saw makes a rougher cut than a 6-point saw |
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an 8-point saw has eight teeth per inch |
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an 8-point saw makes a rougher cut than a 12-point saw |
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an 8-point saw makes a finer cut than a 12-point saw |
Saw blades are described by the number of teeth per inch (TPI). The higher the TPI of a saw the finer the cut it will make.
Which of the following statements about welding is not true?
a weld can often be stronger than the base materials alone |
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electric-arc welding is safer than oxyacetylene welding |
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welding is done at higher temperatures than soldering |
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no filler metal is required when welding |
Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.
This tool is a(n) __________.
inside caliper |
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outside caliper |
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vernier caliper |
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inside micrometer |
Calipers are similar to micrometers in shape but instead of measuring distances, calipers are used to transfer distances between objects. An outside caliper is used to transfer outside dimensions while an inside caliper is used to transfer inside distances. A vernier caliper is an extremely precise caliper (down to \({1 \over 1000}\) inch) that allows measuring / transferring either inside or outside dimensions.